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SubjectRe: [PATCH] net/9p: autoload transport modules
Thomas Weißschuh wrote on Tue, Nov 02, 2021 at 03:49:32PM +0100:
> > I guess it wouldn't hurt to have 9p-tcp 9p-unix and 9p-fd aliases to the
> > 9pnet module, but iirc these transports were more closely tied to the
> > rest of 9pnet than the rest so it might take a while to do and I don't
> > have much time for this right now...
> > I'd rather not prepare for something I'll likely never get onto, so
> > let's do this if there is progress.
> >
> > Of course if you'd like to have a look that'd be more than welcome :-)
>
> If you are still testing anyways, you could also try the attached patch.
> (It requires the autload patch)
>
> It builds fine and I see no reason for it not to work.

Thanks! I'll give it a spin.


I was actually just testing the autoload one and I can't get it to work
on my minimal VM, I guess there's a problem with the usermodhelper call
to load module..

with 9p/9pnet loaded,
running "mount -t 9p -o trans=virtio tmp /mnt"
request_module("9p-%s", "virtio") returns -2 (ENOENT)

Looking at the code it should be running "modprobe -q -- 9p-virtio"
which finds the module just fine, hence my supposition usermodhelper is
not setup correctly

Do you happen to know what I need to do for it?

I've run out of time for today but will look tomorrow if you don't know.

(And since it doesn't apparently work out of the box on these minimal
VMs I think I'll want the trans_fd module split to sit in linux-next
for a bit longer than a few days, so will be next merge window)


Thanks,
--
Dominique

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